Basically a common side effect of being a hardcore gamer, in which something goes wrong and the person gives all of his friends and co players hell

In world of warcraft a guild recorded a conversation on vent in which after 1 person messes up a job he had in a raid, he causes a wipe and this results in the leaders screaming obscenities down his micro phone.
Search :Onyxia wipe animation for the voice.
This is a superb example of a nerd rage, its also associated with geeks who don't get there own way and just whine a lot.

Nerd Rage is a new series of games from Nerd Rage Games produced under the Rage Series of games copyright in 2010. Players can role-play in science-fiction settings, medieval or modern earth settings. The games are designed so they can be played on their own or together. All that is required is a d20, pencil, paper and a sheet of graph paper if the players wish.